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// Code cell snippets
define([
'jquery',
'base/js/namespace',
'base/js/dialog'
], function(
$,
Jupyter,
dialog
) {
"use strict";
var initialize = function () {
var dropdown = $("<select></select>").attr("id", "snippet_picker")
.css("margin-left", "0.75em")
.attr("class", "form-control select-xs")
.change(insert_cell);
Jupyter.toolbar.element.append(dropdown);
};
// will be called when the nbextension is loaded
function load_extension() {
Jupyter.notebook.config.loaded.then(initialize); // trigger loading config parameters
$.getJSON(Jupyter.notebook.base_url+"nbextensions/snippets/snippets.json", function(data) {
// Add the header as the top option, does nothing on click
var option = $("<option></option>")
.attr("id", "snippet_header")
.text("Snippets");
$("select#snippet_picker").append(option);
// Add options for each code snippet in the snippets.json file
$.each(data['snippets'], function(key, snippet) {
var option = $("<option></option>")
.attr("value", snippet['name'])
.text(snippet['name'])
.attr("code", snippet['code'].join('\n'));
$("select#snippet_picker").append(option);
});
})
.error(function(jqXHR, textStatus, errorThrown) {
// Add an error message if the JSON fails to load
var option = $("<option></option>")
.attr("value", 'ERROR')
.text('Error: failed to load snippets!')
.attr("code", "");
$("select#snippet_picker").append(option);
});
};
var insert_cell = function() {
var selected_snippet = $("select#snippet_picker").find(":selected");
if (selected_snippet.attr("name") != 'header') {
var code = selected_snippet.attr("code");
var new_cell = Jupyter.notebook.insert_cell_above('code');
new_cell.set_text(code);
new_cell.focus_cell();
$("option#snippet_header").prop("selected",true);
}
};
// return public methods
return {
load_ipython_extension : load_extension
};
});
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